Play dough isn't all that easy to create with, as compared to modeling clay, but nonetheless a nice tactile and relaxing experience for any age. I think the idea of creating abstract sculpture with play dough takes the pressure off to create something that looks like something, and is really fun and relaxing. Give it a try, and even if you don't have any kids around to do it with you, go for it!
The play dough recipe we used was fairly good, though did dry out a bit, so keep it on the moist side:
This makes a ball the size of an adult's fist, and it is fun to make different colors in small containers. Plus while you can certainly make a bigger batch and divide and color at the end, this is a good quantity of ingredients for kids to mix themselves.